I did a res change on my girls that i just put into flowering, and bumped from 1/4str lucas formula to 1/2str. Also I filled the res a bit higher than I normally would, right up to the bottom of the net cup. Another factor is that my PH meter is broken so I essentially mixed the nutes, and put a guesstimate of how much PHdown to make it right, and i'm thinking this is my mistake because i have 3 separate reservoirs and 2 are fine and 1 is full of droopy, ready-to-die looking plants. So are droopy plants a sign of ph too low or too high? Or could it just be some type of shock that they will get over soon? I have pics but idk where my camera cable is, I'll hunt it down if necessary.